Is your 2008 Cadillac SRX suffering from perplexing issues like a persistent check engine light, rough idling, stalling, or a complete failure to start? These are classic signs of a failing Engine Control Module (ECM), the central computer that governs your vehicle’s engine performance, fuel economy, and emissions. A faulty ECM can turn your luxury SUV into an unreliable source of frustration. This replacement Engine Control Module, part number 12630457, is the definitive solution to restore your vehicle’s factory performance and reliability.
The ECM is the brain of your SRX’s engine management system. It processes data from dozens of sensors—monitoring everything from oxygen levels in the exhaust to the crankshaft’s position—and makes instantaneous adjustments to fuel injection, ignition timing, and transmission shifting. When it fails, the entire system is compromised. Don’t let a malfunctioning computer dictate your driving experience. This module is your path back to a smooth, responsive, and dependable Cadillac.
Common Symptoms of a Failing 2008 SRX Engine Module
- ✔ Persistent and illuminated Check Engine Light (CEL)
- ✔ Engine stalling or shutting off unexpectedly while driving
- ✔ Rough or erratic idling
- ✔ Noticeable decrease in fuel economy
- ✔ Hesitation or stumbling during acceleration
- ✔ Difficulty starting the engine or a no-start condition
- ✔ Transmission shifting problems or getting stuck in gear
- ✔ Unexplained error codes stored in the system
The Critical Importance of VIN Programming
Simply swapping an ECM from another vehicle will not work. Modern vehicles like your Cadillac SRX have sophisticated anti-theft systems and vehicle-specific software calibrations. Our service eliminates the guesswork and costly trips to the dealership. When you purchase this module, you provide us with your vehicle’s VIN. We then flash the unit with the latest, most up-to-date GM factory software specific to your exact vehicle configuration. This ensures seamless communication between the new ECM and all other modules in your SRX, guaranteeing correct engine operation, transmission function, and system integration right out of the box.
This module is a direct replacement for a wide range of GM vehicles and is interchangeable with several service numbers, including 12590032, 12602044, 12603530, 12605843, 12607096, and 19210737. By ordering from us, you receive a part that is not only physically compatible but electronically matched to your car.
Frequently Asked Questions
Do I need to get this ECM programmed by a dealer?
No. This ECM comes pre-programmed to your vehicle’s specific VIN before we ship it. This saves you the time, hassle, and expense of a dealership visit for programming.
Where is the ECM located on my 2008 Cadillac SRX?
On the 2008 SRX with the 4.6L engine, the Engine Control Module is typically located in the left-hand (driver’s side) engine compartment. Always disconnect the battery before attempting removal or installation.
What information do you need from me?
After you place your order, we will need your vehicle’s 17-digit Vehicle Identification Number (VIN). This is essential for us to load the correct software and ensure perfect compatibility.
Is any additional setup required after I install it?
In many cases, the vehicle will start and run perfectly after installation. However, some GM vehicles may require a simple, key-on security relearn procedure or a crankshaft position sensor (CASE) relearn to clear certain codes. These procedures can often be done without special tools and instructions can be readily found online.
Is this part compatible with other vehicles?
Yes, this ECM is compatible with a very wide range of GM vehicles from Cadillac, Buick, Chevrolet, GMC, Pontiac, Saturn, Saab, and Isuzu. Please refer to the detailed fitment list on this page to confirm compatibility with your specific model and engine.